Cop holder



June 10, 1930: A. HLAVAC 1,762,516

COP HOLDER Filed April 24, 1929 Patented June 10, 1930 UNETED STATES PATENT OFFICE ANTHONY HLAVAC, OF CHICAGO, ILLINOIS, ASSIGNOR TO EBER J. HUBBARD, OF

BERWYN,

ILLINOIS CO1? HOLDER Application filed. April 24, 1929. Serial No. 357,756.

My invention 1 relates to cop holders for supporting cops of yarn or thread to be fed, for example, in braiding machines.

The important object of the invention is to provide a more efficient form of supporting base and more efficient means for rigidly securing a spindle tube to the base against ro-- tational or longitudinal displacement.

The above features and others are incorporated in the structure shown in the drawing in which Fig. 1 is a side elevation, Fig. 2 is a plan view, Fig. 3 is a bottom view, Fig. 4 is a section on line 44, Fig. 1,

Fig. 5 is a plan view of the base, Fig. 6 is a side elevation of the lower end of the spindle tube, and

Fig. 7 is an end view of the spindle tube. The base 10 is cylindrical and may be a die casting of aluminum or other light and tenacious metal. On its under side the base has the radial ratchet teeth 11 extending from the hub 12 to the base periphery. The front faces 13 of the teeth are in vertical planes and the backs 1a are gradually inclined or bevelled, while the crowns 15 are of sufficient width to form with the hub end adequate seating surface for the base. The hub has the axial cylindrical opening 16 for receiving the spindle tube 17 and on its top has the collar or flange 18 one of whose purposes is to increase the length of the opening 16 and consequently the seating surface for the spindle tube.

- Extending radially into the opening 16 the full length of the hub and the collar is the spline or abutment 19 whose inner surface 20 is concentric with the opening and whose radial depth is equal to the thickness of the sheet metal from which the spindle tube is formed. The hub at its lower end is countersunk or recessed to a depth equal preferably to the thickness of the spindle tube metal to form the shoulder 21 which does not entirely surround the opening 16 but is interrupted by the hub part 22 whose radial sides 23 and 24 are in the planes of the radial sides 25 and 26 of the spline 19. In other words, the part 22 forms a spline in the recess space below the shoulder 21 and is a continuation of the sphne 19 in the opening 16.

The spindle tube 17 is formed by bending a sheet of metal into cylindrical form with the longitudinal edges abutting as shown at 27 in Fig. 6. At its lower end the tube has the longitudinal slot 28 whose width is equal to the distance between the spline side surfaces 25 and 26, and the tube is of outer diameter to fit snugly in the base opening 16. When the tube is inserted in the opening the sides a of its slot abut against the spline sides 25 and 26 and the upper edge I) of the slot seats against the top of the spline 19. The slot is longer than the opening 16 so that the lower end of the tube will extend below the opening to bedeflected radially into the hub countersunk space and against the shoulder 21 to form a locking flange 29 whose ends abut against the spline surfaces 23 and 24. Such engagement of the tube with the spline surfaces looks it rigidly to the base against rotational displacement, and the clamping of the base axially between the upper edge 7) ofthe slot 28 and the flange 29 rigidly secures the tube against longitudinal displacement. The long continuous opening 16 and corresponding extensive engagement between the base and tube greatly adds to the strength and rigidity of the joint.

As shown (Fig. 6) the line of the tube seam 27is between the sides of the slot 28 so that when the tube is secured in the base the seam edges will be held against relative longitudinal displacement and the tube strengthened againsttwisting.

As the shoulder 21 is of a depth equal to the thickness of the spindle tube metal, its outer face will be in the plane of the hub end and teeth crowns and will afford additional bearing surface for the base on its support.

Cops usually have paper cores on which the yarn or thread is wound. To center the cap on the spindle tube and to hold it against rotation thereon I provide the frame 30 formed from a single piece of sheet metal and comprising the upper and lower sleeves 31 and 32 connected by longitudinal springy ribs 33 which ribs may be of substantially semicircular cross section, The sleeves inti mately lit the spindle tube and are secured thereto preferably by spot welding, the upper sleeve 31 ending flush with the upper end of the spindle tube and the lower sleeve 32 seating against the top of the base collar 18 and. assistinginlocking the spindle tube against longitudinal displacement. on the base. The ribs 38 will depress into the cap core and lock the cap against rotational movement on the holder, andthe collar 18 -will receive the lower end of the core and'will center the cap-on the base, the collar upper edge being bevelled as indicated at 34 so that the cap core can more readily receive the collar.

The base being of light metal such as aluminum can be of substantial volume without unduly increasingtheweight, andiit therefore permits of the long seating opening for thespindle tube so that-the tube-can be rigidly secured and held against displacement under heavy workand load. and the holder will resi-stthe wear and tear incidental toits use;- Thespindleptube being oi fsteel, its low-- or endwilLformaresistant; bearing lining for the base, and: the flange 29 will resist wear of the base bottom} particularly adj acentvto the spindle onwhi'ch: the holder is mounted.:. a

I do not desire to be limitedto the; exact structure shown] as modifications, may be made without departing from thescope of the invention-z.

I claim:

1. A cop holderrcomprising a base; having a long continuous; aX-ial' opening, a metallic spindle tube snugly fitting atits; lower end in said.o,pening,,and a spline-on said base ex tending full length of said opening andloeing of a: radial: depth equalto the thickness of the-spindle tube metal, said tube having-a slot receiving said spline: whereby, itis lockedto the base against rotational displacement, the tube atthe upper, end of: its slotresting against the top of-tlie spline andthe lowerend of said tube being. deflected: radially and against; the :base bottom whereby said tube is lockedagainst longitudinal displacement.

2-: A. cop holder: comprising a basehaving a longicontinuous axial 'opening'and having a recess in its; ,undersidersurrounding. said opening, a spline on said base extending full length of; saidopening' an'd into said recess, and a metalliospindle tube-snugly fitting in said opening and havinga slotreceiving said spline whereby it is locked against rotational displacement, SHld'tHb-Gtt' 31611131381811(1'1035 its-slot restingagainst theaupper; end of said spline and the tube: at: the lower end 01% said slota being deflectedinto said recessavhereby the tube is locked? against longitudinali dis-1 placement.

3: A: OOP'X holder? comprising an integral b'asehaving a lon-g' continuous axial opening and having-a recess: in itsunder side surrounding-said opening, a-collaron the upper side of said base-surrounding and prolonging said opening, a spline on said baseextending full length of said opening and into said recess, and a metallic spindle tube fitting at its lower end in said opening and having a slot receiving said spline whereby it is locked against rotational displacement, the tube at the upper end of its slot resting on top of said spline and the tube metal around the lower end of the slot being deflected into-said recess whereby said tube is clamped against longitudinal displacement.

4: A cop holder comprising a solid metallic base having a long axial opening and a recess in its under side surrounding said opening, aicollar on the upper side of said base surrounding and prolonging said opening, a spline on said base extending into said opening and said recess, ametallic spindle tube slotted at its lower end to receive-saidispline and being defiectediinto said recess, and avcop clampingframe on said spindle tube and seat-, ing on said: collar;

In witness whereof, I hereunto subscribe my name this 23d-day oiiApril, 1929.-

ANTHONY HLAVAQ, 

